556425939 has 4 divisors (see below), whose sum is σ = 741901256. Its totient is φ = 370950624.

The previous prime is 556425931. The next prime is 556425967. The reversal of 556425939 is 939524655.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 556425939 - 2³ = 556425931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (556425931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92737654 + ... + 92737659.

It is an arithmetic number, because the mean of its divisors is an integer number (185475314).

Almost surely, 2^556425939 is an apocalyptic number.

556425939 is a deficient number, since it is larger than the sum of its proper divisors (185475317).

556425939 is a wasteful number, since it uses less digits than its factorization.

556425939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185475316.

The product of its digits is 1458000, while the sum is 48.

The square root of 556425939 is about 23588.6824345914. The cubic root of 556425939 is about 822.4997774718.

The spelling of 556425939 in words is "five hundred fifty-six million, four hundred twenty-five thousand, nine hundred thirty-nine".